Retailers’ most valuable asset has turned out to be their customers’ credit card accounts. Theft has always been a challenge for retailers, but before the computer era, thieves were usually aiming to steal merchandise. With tens of millions of accounts compromised, the take adds up quickly. The top retailers have loomed large among the all-time largest hacks, as reported by Paul Ausick at 24/7 Wall St. Last year, it was taken for 145 million customer accounts, the largest known haul of data from a single targeted victim.”]
Source: https://securityintelligence.com/the-top-5-retail-breaches/